MC33039, NCV Closed Loop Brushless Motor Adapter

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1 MC3339, NCV3339 Closed Loop Brushless Motor Adapter The MC3339 is a high performance closedloop speed control adapter specifically designed for use in brushless DC motor control systems. Implementation will allow precise speed regulation without the need for a magnetic or optical tachometer. This device contains three input buffers each with hysteresis for noise immunity, three digital edge detectors, a programmable monostable, and an internal shunt regulator. Also included is an inverter output for use in systems that require conversion of sensor phasing. Although this device is primarily intended for use with the MC333 brushless motor controller, it can be used cost effectively in many other closedloop speed control applications. Features Digital Detection of Each Input Transition for Improved Low Speed Motor Operation TTL Compatible Inputs With Hysteresis Operation Down to. V for Direct Powering from MC333 eference Internal Shunt egulator Allows Operation from a Nonegulated Voltage Source Inverter Output for Easy Conversion between 6 /3 and 2 /24 Sensor Phasing Conventions PbFree Packages are Available PDIP P SUFFIX CASE 626 SOIC D SUFFIX CASE 7 A = Assembly Location WL, L = Wafer Lot YY, Y = Year WW, W = Work Week G or = PbFree Package PIN CONNECTIONS MAKING DIAGAMS MC3339P AWL YYWWG 3339 ALYW V CC φ C V CC 4 Inputs φ B GND T /C T To otor Position Sensors φ B k.2 V S Q 2 k 6 f out T C T 4 (Top View) ODEING INFOMATION See detailed ordering and shipping information in the package dimensions section on page 6 of this data sheet. f out φ C.3 V 7 GND epresentative Block Diagram Semiconductor Components Industries, LLC, 22 June, 22 ev. 6 Publication Order Number: MC3339/D

2 MC3339, NCV3339 MAXIMUM ATINGS ating Symbol Value Unit V CC Zener Current I Z(VCC ) 3 ma Logic Input Current (Pins, 2, 3) I IH. ma Output Current (Pins 4, ), Sink or Source I DV 2 ma Power Dissipation and Thermal Characteristics Maximum Power T A = C Thermal esistance, JunctiontoAir P D 6 JA Operating Junction Temperature T J C Operating Ambient Temperature ange MC3339 NCV3339 T A 4 to 4 to 2 Storage Temperature ange T stg 6 to C Stresses exceeding Maximum atings may damage the device. Maximum atings are stress ratings only. Functional operation above the ecommended Operating Conditions is not implied. Extended exposure to stresses above the ecommended Operating Conditions may affect device reliability. ELECTICAL CHAACTEISTICS (V CC = 6.2 V, T = k, C T = 22 nf, T A = 2 C, unless otherwise noted) Characteristic Symbol Min Typ Max Unit mw C/W C LOGIC INPUTS Input Threshold Voltage High State Low State Hysteresis V IH V IL V H V Input Current High State (V IH =. V) φ B, φ C Low State (V IL = V) φ B, φ C I IH I IL A MONOSTABLE AND OUTPUT SECTIONS Output Voltage High State f out (I source =. ma) (I source = 2. ma) Low State f out (I sink = ma) (I sink = ma) V OH V OL V Capacitor C T Discharge Current I dischg ma Output Pulse Width (Pin ) t PW s POWE SUPPLY SECTION Power Supply Operating Voltage ange MC3339 (T A = 4 to C) NCV3339 (T A = 4 to 2 C) V CC. V Z V Power Supply Current I CC ma Zener Voltage (I Z = ma) V Z V Zener Dynamic Impedance ( I Z = ma to 2 ma, f. khz) Z ka 2.. 2

3 MC3339, NCV3339 otor Electrical Position (Degrees) Sensor Electrical Phasing Input φ B φ C 2 Sensor Electrical Phasing Input φ B φ C Output Latch Set Input T /C T V th.67 V CC f out Output V out (AVG) Constant Motor Speed The MC3339 provides an economical method of implementing closedloop speed control of brushless DC motors by eliminating the need for a magnetic or optical tachometer. Shown in the timing diagram of Figure, the three inputs (Pins, 2, 3) monitor the brushless motor rotor position sensors. Each sensor signal transition is digitally detected, O ed at the Latch Set Input, and causes C T to discharge. A corresponding output pulse is generated at f out (Pin ) of a defined amplitude, and programmable width determined by the values selected for T and C T (Pin 6). The average voltage of the output pulse train increases with motor speed. When fed through a low pass filter or integrator, a DC voltage proportional to speed is generated. Figure 2 shows the proper connections for a typical closed Increasing Motor Speed Figure. Typical Three Phase, Six Step Motor Application OPEATING DESCIPTION loop application using the MC333 brushless motor controller. Constant speed operation down to PM is possible with economical three phase four pole motors. The inverter output (Pin 4) is used in systems where the controller and motor sensor phasing conventions are not compatible. A method of converting from either convention to the other is shown in Figure 3. For a more detailed explanation of this subject, refer to the text above Figure 39 on the MC333 data sheet. The output pulse amplitude V OH is constant with temperature and controlled by the supply voltage on V CC (Pin ). Operation down to. V is guaranteed over temperature. For systems without a regulated power supply, an internal.2 V shunt regulator is provided. 3

4 MC3339, NCV3339 N S V otor M Motor Output Buffers k 4.2 V 7 S Q 2 MC3339P k.3 V 6 T C T Fwd/ ev V CC Enable Speed Set EF EA OSC MC333P PWM UVLO Thermal S Q S Q POS DEC I LIMIT Brake Fault Assy S N Figure 2. Typical Closed Loop Speed Control Application 4

5 MC3339, NCV3339 t PW, OUTPUT PULSE WIDTH (ms) V CC = 6.2 V T A = 2 C C T = 22 nf C T = 22 nf C T = 2.2 nf 2 2 T, TIMING ESISTO (k ) Δt PW, OUTPUT PULSE WIDTH CHANGE (%) V CC = 6.2 V T = k C T = 22 nf T A, AMBIENT TEMPEATUE ( C) Figure 3. f out, Pulse Width versus Timing esistor Figure 4. f out, Pulse Width Change versus Temperature Δt PW, OUTPUT PULSE WIDTH CHANGE (%) T A = 2 C V CC, SUPPLY VOLTAGE (V) ICC, SUPPLY CUENT (ma) Pins, 2, 3 Connected together T A = 4 C T T A = 2 C A = 2 C V CC, SUPPLY VOLTAGE (V) Figure. f out, Pulse Width Change versus Supply Voltage Figure 6. Supply Current versus Supply Voltage Vsat, OUTPUT SATUATION VOLTAGE (V) V CC Source Saturation (Load to Ground) Sink Saturation (Load to V CC ) GND I O, OUTPUT LOAD CUENT (ma) Figure 7. f out, Saturation versus Load Current V CC = 6.2 V T A = 2 C ΔVsat (sink), SINK SATUATION CHANGE (%) V CC = 6.2 V I O =. ma Sink Saturation (Load to V CC ) 2 Source Saturation (Load to Ground) T A, AMBIENT TEMPEATUE ( C) Figure. f out, Saturation Change versus Temperature ΔVsat (SOUCE), SOUCE SATUATION CHANGE (%)

6 MC3339, NCV3339 ODEING INFOMATION MC3339D MC3339DG MC3339D2 MC3339D2G MC3339P MC3339PG NCV3339D2* NCV3339D2G* Device Operating Temperature ange Package Shipping T A = 4 C to C SOIC PDIP 9 Units / ail 2 / Tape & eel Units / ail T A = 4 C to 2 C SOIC 2 / Tape & eel For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and eel Packaging Specifications Brochure, BD/D. *NCV3339: T low = 4C, T high = 2C. Guaranteed by design. NCV prefix is for automotive and other applications requiring site and change control. 6

7 MC3339, NCV3339 PACKAGE DIMENSIONS P SUFFIX CASE 626 ISSUE M D D A E NOTES:. DIMENSIONING AND TOLEANCING PE ASME Y4.M, CONTOLLING DIMENSION: INCHES. 3. DIMENSION E IS MEASUED WITH THE LEADS E STAINED PAALLEL AT WIDTH E2. 4. DIMENSION E DOES NOT INCLUDE MOLD FLASH.. OUNDED CONES OPTIONAL. NOTE 4 F TOP VIEW e/2 A E c E2 END VIEW NOTE 3 INCHES DIM MIN NOM MAX A.2 A. b C...4 D D. E MILLIMETES MIN NOM MAX E E2.3 BSC 7.62 BSC E e. BSC 2.4 BSC L L A e SIDE VIEW C SEATING PLANE X b. M C A E3 END VIEW 7

8 MC3339, NCV3339 PACKAGE DIMENSIONS SOIC NB CASE 77 ISSUE AK X B Y A 4 S.2 (.) M Y M K NOTES:. DIMENSIONING AND TOLEANCING PE ANSI Y4.M, CONTOLLING DIMENSION: MILLIMETE. 3. DIMENSION A AND B DO NOT INCLUDE MOLD POTUSION. 4. MAXIMUM MOLD POTUSION. (.6) PE SIDE.. DIMENSION D DOES NOT INCLUDE DAMBA POTUSION. ALLOWABLE DAMBA POTUSION SHALL BE.27 (.) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATEIAL CONDITION THU 76 AE OBSOLETE. NEW STANDAD IS 77. Z H G D C.2 (.) M Z Y S X S SEATING PLANE. (.4) N X 4 M J MILLIMETES INCHES DIM MIN MAX MIN MAX A B C D G.27 BSC. BSC H J K M N S SOLDEING FOOTPINT* SCALE 6: mm inches *For additional information on our PbFree strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques eference Manual, SOLDEM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC s product/patent coverage may be accessed at SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Typical parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner. PUBLICATION ODEING INFOMATION LITEATUE FULFILLMENT: Literature Distribution Center for ON Semiconductor P.O. Box 63, Denver, Colorado 27 USA Phone: or Toll Free USA/Canada Fax: or Toll Free USA/Canada N. American Technical Support: 229 Toll Free USA/Canada Europe, Middle East and Africa Technical Support: Phone: Japan Customer Focus Center Phone: 37 ON Semiconductor Website: Order Literature: For additional information, please contact your local Sales epresentative MC3339/D

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